Embed Attachments into PDF
Embed auxiliary files or documents directly into your PDF.
AZ2PDF Add Attachments is a free, high-speed online utility designed to embed auxiliary files or documents directly into your pdf. Operating securely in volatile RAM memory with automated 5-minute permanent file deletion, your documents remain private without requiring user accounts or software installation.
High-speed secure cloud storage for businesses & developers.
or drop files here
Supports PDF up to 50MBHigh-speed secure cloud storage for businesses & developers.
How it works
Select PDF & Attachments
Upload your main PDF document along with any additional files to attach.
Embed Attachments
Attaches auxiliary files safely within the PDF document structure.
Download PDF
Download your unified PDF document containing all attached files.
Frequently asked questions
Is Add Attachments on AZ2PDF completely free?
Yes, Add Attachments is 100% free with unlimited usage, no registration required, no subscription fees, and zero watermarks.
Are my documents safe and private?
Absolutely. Files are processed securely in high-speed RAM and permanently purged after 5 minutes by our automated cleanup daemon.
How can I retrieve hidden file attachments packaged inside a PDF document?
Extract Attachments unpacks auxiliary files embedded inside the PDF document (such as XML invoices, spreadsheets, or images) and bundles them into a downloadable ZIP archive.
What is the maximum file size limit?
You can process files up to 30MB instantly in high-speed RAM, with background asynchronous delivery available for larger documents.
High-speed secure cloud storage for businesses & developers.